Tran, K.V.; Woracek, R.; Penumadu, D.; Kardjilov, N.; Hilger, A.; Boin, M.; Banhart, J.; Kelleher, J.; Tremsin, A.S.; Manke, I.: Phase and texture evaluation of transformation-induced plasticity effect by neutron imaging. Materials Today Communications 35 (2023), p. 105826/1-8
10.1016/j.mtcomm.2023.105826
Abstract:
The availability of non-destructive characterization techniques for polycrystalline materials is crucial for the development of new alloys, the improvement of manufacturing processes, and a better understanding of failure phenomena. Using example data, this paper summarizes the capabilities of neutron-based 2D and 3D imaging techniques for determining phase fractions deep in the bulk (up to centimeters) of samples and to detect spatial variations of preferred crystal orientations (texture). Providing spatial resolutions of the order 50–300 µm, these techniques complement surface-based techniques such as EBSD and X-ray diffraction and are uniquely suited to study large components non-destructively. The neutron imaging methodology and related interpretations are demonstrated in a step-by-step fashion in this paper for TRIP steel that exhibits an austenite-to-martensite transformation under the influence of both tensile and torsional deformations.